Watchman Error with ember-cli

Question

I am trying to follow the examples in Ember 101. I have worked through this code once before without any issue. After reinstalling my ubuntu 14.04 for unrelated reasons I am getting an error [see bellow] when I run ember serve in my console.

I tried the solution to this problem at: https://facebook.github.io/watchman/docs/troubleshooting.html#poison-inotify-add-watch. I also added "node_modules" and "bower_components" to the .watchmanconfig ignore_dirs per: https://github.com/ember-cli/ember-cli/issues/4101 without effect.

Anyone know what I am doing wrong/have installed incorrectly?

Error: A non-recoverable condition has triggered. Watchman needs your help! The triggering condition was at timestamp=1449200416: inotify-add-watch(/home/john/Practice/borrowers/tests/unit/models) -> The user limit on the total number of inotify watches was reached; increase the fs.inotify.max_user_watches sysctl All requests will continue to fail with this message until you resolve the underlying problem. You will find more information on fixing this at https://facebook.github.io/watchman/docs/troubleshooting.html#poison-inotify-add-watch

at ChildProcess.<anonymous> (/home/john/Practice/borrowers/node_modules/ember-cli/node_modules/sane/node_modules/fb-watchman/index.js:202:17)
at emitTwo (events.js:87:13)
at ChildProcess.emit (events.js:172:7)
at maybeClose (internal/child_process.js:818:16)
at Socket.<anonymous> (internal/child_process.js:319:11)
at emitOne (events.js:77:13)
at Socket.emit (events.js:169:7)
at Pipe._onclose (net.js:469:12)

Pyrazole

Answer 1

I realize this is an old thread, but in case somebody else stumbles here I was able to solve this on my machine by executing the following commands...

$ sudo sysctl fs.inotify.max_user_watches=524288
$ watchman shutdown-server

The next time I ran ember build --watch, everything worked.

For a much better explanation, see...

• https://unix.stackexchange.com/questions/13751/kernel-inotify-watch-limit-reached
• https://facebook.github.io/watchman/docs/install.html#system-specific-preparation

Asset

This helped me with my React-native app! – Jeremy

This helped me on Ubuntu 17.04. Cheers – Glasser

Answer 2

If you want to permanently modify your system you can put this commands:

echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf
sudo sysctl -p
watchman shutdown-server

It has happened to me after upgrading ember to 2.5.0 on my Ubuntu 16.04

Costermonger

this permanent fix was much better for me as it takes into account rebooting of the server. – Hix